Ether can



March 17, 1936.

l. NEWMAN ETHER CAN Filed May 17, 1954 II III llll INVENTOR Is idor Newman BY ATTORNEY Patented Mar. 17, 1936 UNITED STATES PATENT OFFICE 1Claim.

My invention relates to cans for containing highly volatile liquids, andit particularly relates to ether cans.

The invention has for an object to provide a can whose neck or spout isclosed by a soft metal closure that can be readily cut out or piercedfor access to the contents of the can, which closure is so constructedin cooperation with the rim of the neck or spout of the can as to effectan absolutely airtight joint or hermetic seal.

Again it is an object to provide a can having a neck or spout ofrelatively hard metal and closure therefor of a softer metal and whichis provided with a thickened. or beaded rim; further it is an object toprovide a structure in which the flange of the spout is rolled over thebead of the closure of the two are flattened so that there is a tightengagement between the entire surface of the bead and the adjacentsurface of the neck metal, thereby providing a strong and effectivehermetic closure which will not tend to loosen or leak, etc., in theevent that pressure is app-lied to the dome of the closure member,either by an accidental blow or otherwise.

Other objects will in part be obvious and in part be pointed outhereinafter.

To the attainment of the aforesaid objects and ends, the invention stillfurther resides in the novel details of construction, combination andarrangement of parts, all of which will be first fully described in thefollowing detailed description and then be particularly pointed out inthe appended claim, reference being had to the accompanying drawing, inwhich:

Figure 1 is a side elevation of an ether can with my invention applied.

Figure 2 is a detail side elevation with parts being broken away,showing the position of the parts before rolling over the edge of theneck or spout of the can.

Figure 3 is a view similar to Figure 2, showing the joint completedbetween the closure and the can.

Figure 4 is a detail view, partly in elevation and partly in section, ofthe closure member.

Figure 5 is a plan, looking in the direction of the arrows 55 in Figure3.

In the drawing, in which like numerals of reference indicate like partsin all the figures, l designates the can having a neck of the usualconstruction. The upper portion of the neck is outwardly flared as at 3,and upwardly and in- 5 wardly curved as at 4, terminating in the edge 5.

The closure member 9 consists of a soft metal body of relatively thincross section and having a thickened annulus or bead l forming ashoulder 8 between the bead and the dome portion 9. 10

In assembling the closure to the can it is set into the trough formed bythe parts 3 and 4, shown in Figure 2, and the metal is rolled over thebead I, and at the same time is compressed so as to flatten the bead andprovide a fiat top surface 6 to the trough 3-4-6 (see Figure 3), theflattening of the bead serving to squeeze the metal into all portions ofthe trough 3-4-6 and completely seal it. The edge 5 at the same time isrolled inwardly of the closure as at 8. It will be seen by reference toFigure 3 that if pressure is applied to the closure part 9 downwardlythe tendency will be to spread the annulus or bead I and thereby exert atightening pressure between the bead and the troughlike member 3-4-6 inwhich the bead is located.

From the foregoing description, taken in connection with theaccompanying drawing, it is thought that the complete construction andadvantages of the invention will be apparent.

What I claim is:

In a can, a neck having an outwardly and upwardly flared portion forminga trough, a soft metal closure member having an arched body wallsurrounded by a pre-formed bead at its periphery, the diameter of thebead exceeding the thickness of the wall of the closure member in virtueof which an annular shoulder is provided on top of the closure member atthe juncture of the bead with the body wall, said flared 40 portionbeing inwardly bent over the bead in tight sealing contact therewith,the edge of the inwardly extended part of the flared portion beingextended downwardly in tight sealing contact with said shoulder and withthe body wall of the sealing member substantially as described.

ISIDOR NEWMAN.

